I was trying got unlock my iPhone 4s that was locked to Telenor in Norway.
Unbeknown to me when I bought the phone second hand, it had been reported as lost or stolen and blacklisted or blocked by the network.

Despite having been scammed (the pervious owner did not disclose this information to me) this website said they still might be able to get it unlocked.
It took a fews days of emails and on-line chats, but eventually they were able to get my iPhone unlocked for me and I am now using it without any issues in Canada.

Very customer focused company, went the extra nine yards to help me and eventually I got what I wanted, my phone unlocked.